Ahem. Wording the following carefully now...
I prefer the latter :-)
/Not/ touch dimmers. Because you invariably end up touching it one touch too
many and the lights go out, so you have to start again.
The passive IR sensors detect movement around the house and the computer
automatically sets lighting levels as you do so, depending on the time
and location. eg, in the early hours it will set them dim (non-blinding)
in the hallways but brighter on the stairwells.
The X-10 light switches also respond to the remote control pad and, of
course, work as touch dimmers.
One press of a button or sensor input (eg smoke detector) will turn on
all the lights in the house.
Watch out some touch dimmers are affected by damp. My parents installed one
in their front room but found in the winter when the room was not used a lot
the light would come on by itself and cycle up and down in brightness and no
amount of touching would stop it.
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